So what is catnip? a herb belonging to the mint family and found around the world. If your cat is lazy and in need of a little exercise then catnip is a great way to stimulate them. Many adult cats respond to catnip by jumping, playing and running around for as long as 15 minutes. Sniffing the plant produces a high and chewing releases oils which act as a sedative.
Kittens don’t react to catnip and reactions in older cats may vary, some cats dribble and roll around on the floor, some become hyperactive and others may even become aggressive. Catnip can also be used for humans in medicinal teas to soothe toothaches, help against coughs and also be used as a sleeping aid. Catnip can even be used as a natural insect repellent. Rats and mice are believed to have a disliking to catnip and avoid places where it grows.
The Deloraine Holiday Retreat for Cats 